Graphic sprite for my SNAKE program

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Summary:

I now use a 2x2 sprite only excisting of black dots. I want to change this to a 3x3 sprite so the game gets faster. My problem is the speed.

Graphic sprite for my SNAKE program

my_name 25 Sep 2009 17:46

Hello,

It was a long time ago that i made one of my first program's SNAKE. Now i am improving it by also making it faster. I saw that most time consuming was the graphical part of the snake program:

Pxl-On(L1(F),L2(F))
Pxl-On((L1(F))+1,L2(F))
Pxl-On(L1(F),(L2(F))+1)
Pxl-On((L1(F))+1,(L2(F))+1)
Pxl-Off(L1(G),L2(G))
Pxl-Off((L1(G))+1,L2(G))
Pxl-Off(L1(G),(L2(G))+1)
Pxl-Off((L1(G))+1,(L2(G))+1)

This code makes the head of the snake appear and deletes the tail. L1 is the list with all the x values of the snake and L2 are the Y values. Combining L1 and L2 makes a place.

I use a
94->Ymax
62->Xmax
window. I have always thought that that would be the perfect window. But this site says it must be
:104→Xmax
:72→Ymax

This code works well but its not that fast. If i wanne make a 3x3 sprite it takes me even more time to display so maybe there is a better way using text? or maybe by using lines or plots. I tryed lines but it didnt work out for me. Maybe becouse of the window. I got verry rare results.

I hope somebody can help me.

Thx

Re: Graphic sprite for my SNAKE program

builderboy 25 Sep 2009 22:21

There is a VERY usefull quirk built into the pointOn command. Try this PointOn(0,0,2) and you will get 3x3 box! :O This is what nearly all snake programs use, and it is a very fast way to display square graphics.

Re: Graphic sprite for my SNAKE program

ztrumpet 26 Sep 2009 02:42

Also, a little correction:

Quote:
I use a
94->Ymax
62->Xmax
window. I have always thought that that would be the perfect window. But this site says it must be
104→Xmax
72→Ymax

This is partialy true. The window on here is the same one, but you don't have the Zoom commands. It is:
Yours:
:0->Xmin
:94->Xmax
:0->Ymin
:62->Ymax
The smaller way reccommended here:
:ZStandard
:104->Xmax
:72->Ymax
:ZInteger

Just wanted to clear that up. :)

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Find more info about my projects on Omnimaga:
http://www.omnimaga.org/index.php

Re: Graphic sprite for my SNAKE program

my_name 26 Sep 2009 06:46

Thx for the fast reply i will go and try this :).

so if i am right this would be the command
Pt-On(X,Y[,mark])

also i could delete using Pt-Off( :) i hope this will make the game alot faster

one negative side of this is that it can only display a dot, 3x3box or a 3x3 cross. This will limit the sprites you can make although you can put some px-on with it to make a great sprite.

thx for the help now i understand why everysnake is with 3x3 box and apples are always crosses XD. maybe i will change that.

Re: Graphic sprite for my SNAKE program

my_name 26 Sep 2009 08:38

one thing that wasn't told on the site was the the point where the figure is drawn is not the upper right corner but the center of the figure (costed me a lot of bugs.)

Maybe an idea to write that in the section about Point-On(

alse the page about px-on/off/test only says that the point is Y,X but doesnt tell you that the Y is from above so 0,0 is upper,left.

figured that out easially but as i said it could help people not getting too much bugs.

Re: Graphic sprite for my SNAKE program

ztrumpet 26 Sep 2009 15:56

If you want, you can change the pages.
Just click edit.

---

Find more info about my projects on Omnimaga:
http://www.omnimaga.org/index.php